GS3HUNDRED

I ENDED UP CHANGING THE THROTTLE BODY ON MY GS300 TO FIX THE PROBLEM. JUST CHANGING THE TPS SENSOR DID NOT SOLVE ANYTHING. NOW THE (VSC, VSC OFF) LIGHTS ARE GONE AND THE CAR RUNS SOLID.

i know on my GS300 when my warning lights came on for the rear i had to change a couple of the brake light bulbs even though they seemed to be working fine. only until i changed the rear bulbs did the warning lights go out. good luck

i think you should consider going to a different lexus dealer, who can diagnose the problem and get it fixed instead of having you change parts and waste money for nothing.

price for ordering my tps from "lexuspartsworld.com" $75 dollars price for putting tps on by myself ............................. 8 minutes satisfaction of knowing i didnt get suckered by a mechanic.............. "priceless" ;)

since you notice it at 60 mph it most likely you just need to balance your tires. I found that even the rear tires need to be balanced to eliminate the vibration at highway speeds.

I've got a 98 GS300 recently i've had to deal with the check engine light and both VSC lights all coming on while losing all acceleration ability unless i completely floor the gas pedal. The acceleration comes back to normal if i shut the car off then back on but the warning lights will all stay illuminated. After getting a diagnostic check the codes read the Throttle Position Sensor has failure. So a few hours ago i disassembled the Throttle Position Sensor which sits right on top of the engine, i cleaned it but theres no way to tell that its bad by looking at it. I need to replace it with another TPS. too expensive from the dealer though. any ideas where to get this part cheap?

you might be interested in getting some "Angel Eyes" for your car. I put some on my GS300 because of the same situation your having (moisture). The Angel Eyes look much better though, i got mines off ebay, don't remember exactly how much it cost. good luck.